Catalys Pacific Fund Form 4 Mineralys Therapeutics / Brian Taylor Slingsby ownership change

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

Slingsby Brian Taylor

(Last)

(First)

(Middle)

SHOTO CITY HOUSE 203, 1-23-3, SHOTO,

(Street)

SHIBUYA-KU TOKYO

150-0046

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
Mineralys Therapeutics, Inc. [ MLYS ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
07/12/2023

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

	Form filed by One Reporting Person
X	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Stock Option	$16	07/12/2023		J⁽¹⁾			44,000	⁽²⁾	02/09/2033	Common Stock	44,000	$0	0	D
Stock Option	$16	07/12/2023		J⁽³⁾		88,000		⁽²⁾	02/09/2033	Common Stock	88,000	$0	88,000	I	See footnote⁽⁴⁾

1. Name and Address of Reporting Person^*

Slingsby Brian Taylor

(Last)

(First)

(Middle)

SHOTO CITY HOUSE 203, 1-23-3, SHOTO,

(Street)

SHIBUYA-KU TOKYO

150-0046

(City)

(State)

(Zip)

1. Name and Address of Reporting Person^*

Catalys Pacific Fund, LP

(Last)

(First)

(Middle)

PO BOX 309, UGLAND HOUSE, CAYMAN ISLANDS

(Street)

GRAND CAYMAN

KY1-1104

(City)

(State)

(Zip)

Explanation of Responses:

1. Represents stock options transferred pursuant to an option transfer agreement between Brian Taylor Slingsby and Catalys Pacific Fund, LP.

2. The stock option vests in 36 monthly installments beginning on March 9, 2023.

3. Represents stock options transferred pursuant to option transfer agreements between Catalys Pacific Fund, LP and each of Brian Taylor Slingsby and Takeshi Takahashi.

4. Represents securities held directly by Catalys Pacific Fund, LP. The general partner of Catalys Pacific Fund, LP is Catalys Pacific Fund GP, LP. Brian Taylor Slingsby is the managing partner of Catalys Pacific, LLC, which is the general partner of Catalys Pacific Fund GP, LP. Catalys Pacific, LLC, Catalys Pacific Fund GP, LP and Brian Taylor Slingsby may be deemed to have voting and investment power over the shares held of record by Catalys Pacific Fund, LP. Each of Catalys Pacific, LLC, Catalys Pacific Fund GP, LP and Brian Taylor Slingsby disclaim beneficial ownership of such shares, except to the extent of any pecuniary interest therein.

Remarks:

	Brian Taylor Slingsby by: /s/ Adam Levy, Attorney-in-fact	07/14/2023
	Catalys Pacific Fund, LP, By: Catalys Pacific Fund GP, LP, its General Partner, By: Catalys Pacific, LLC, its General Partner, By: Brian Taylor Slingsby, its Managing Partner, By: /s/ Adam Levy, Attorney-in-fact	07/14/2023
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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Catalys Pacific Fund Form 4Mineralys Therapeutics / Brian Taylor Slingsby ownership change